Labor (2) Health (2) Salud (2) Estudio (2) Trabajo (2) Programs (1) Primary health care (1) Youth (1) Vaccination (1) Trials (1) Sex (Biology) (1) Reason (1) Pressure (1) Possibility (1) Pediatrics (1) Occupations (1) Mental illness (1) Medicine--Practice (1) Medical personnel (1) Measles (1) Logistics (1) Infection (1) Immunoglobulins (1) Immunity (1) Fees, Administrative (1) Faith (1) Experience (1) Diseases (1) Community health services (1) Communities (1)